Make money from a finished program

I recently had a job contract for a college but they cancelled it cos of some disagreement in the board. The program is to manage their Library in a networked envrionment and be part of a bigger school management project.

I was wondering if there is anything I can do with the finished library management program? I am not sure if I should finish the school management program since it is really big and quite personalized to meet the requirements of the college. Any tips on how i can sell it or have it distributed with other packages for free?